/ALE/CLOSE
Block Format Keyword Describes the treatment of element closure.
Format
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| /ALE/CLOSE/prop_ID | |||||||||
| htest | hclose | ||||||||
Definitions
| Field | Contents | SI Unit Example |
|---|---|---|
| prop_ID | Property
identifier (Integer, maximum 10 digits) |
|
| htest | Element size to activate
element closure Default = 0.0 (Real) |
|
| hclose | Element size to activate
resistance to flow Default = 0.1*htest (Real) |
Comments
- This option can be used with fluid properties /PROP/TYPE14 (FLUID) or /PROP/TYPE15 (POROUS).
- The algorithm can handle closure in any but in only one direction, namely when one element is already or is becoming flat.
- The element closure treatment is activated whenever one element dimension is becoming smaller than the threshold value htest. When the element "thickness" becomes smaller than hclose, then a flow resistance is added in order to account for friction effects.